The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2009
Filed:
Jul. 26, 2006
Didier Guerche, Conflans Ste Honorine, FR;
Jean-claude Hanny, Paris, FR;
Serge Prigent, Asnieres sur Seine, FR;
Didier Guerche, Conflans Ste Honorine, FR;
Jean-Claude Hanny, Paris, FR;
Serge Prigent, Asnieres sur Seine, FR;
SNECMA, Pris, FR;
Abstract
The present invention relates to a ceramic core used in the manufacture, by lost wax casting, of a turbomachine blade with cooling cavities and a squealer, comprising at least one main core, wherein the main core () comprises an element (B) shaped so as to constitute the squealer and an element (SB) shaped so as to constitute at least one cavity beneath the squealer, the two elements leaving between them a space () shaped so as to constitute, at least in part, the bottom wall of the squealer. In particular, the elements (B andSB) are joined together by ceramic rods (TG).